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1 | // Copyright John Maddock 2007. | |
2 | // Use, modification and distribution are subject to the | |
3 | // Boost Software License, Version 1.0. (See accompanying file | |
4 | // LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) | |
5 | ||
6 | #ifndef BOOST_MATH_MODF_HPP | |
7 | #define BOOST_MATH_MODF_HPP | |
8 | ||
9 | #ifdef _MSC_VER | |
10 | #pragma once | |
11 | #endif | |
12 | ||
13 | #include <boost/math/special_functions/math_fwd.hpp> | |
14 | #include <boost/math/tools/config.hpp> | |
15 | #include <boost/math/special_functions/trunc.hpp> | |
16 | ||
17 | namespace boost{ namespace math{ | |
18 | ||
19 | template <class T, class Policy> | |
20 | inline T modf(const T& v, T* ipart, const Policy& pol) | |
21 | { | |
22 | *ipart = trunc(v, pol); | |
23 | return v - *ipart; | |
24 | } | |
25 | template <class T> | |
26 | inline T modf(const T& v, T* ipart) | |
27 | { | |
28 | return modf(v, ipart, policies::policy<>()); | |
29 | } | |
30 | ||
31 | template <class T, class Policy> | |
32 | inline T modf(const T& v, int* ipart, const Policy& pol) | |
33 | { | |
34 | *ipart = itrunc(v, pol); | |
35 | return v - *ipart; | |
36 | } | |
37 | template <class T> | |
38 | inline T modf(const T& v, int* ipart) | |
39 | { | |
40 | return modf(v, ipart, policies::policy<>()); | |
41 | } | |
42 | ||
43 | template <class T, class Policy> | |
44 | inline T modf(const T& v, long* ipart, const Policy& pol) | |
45 | { | |
46 | *ipart = ltrunc(v, pol); | |
47 | return v - *ipart; | |
48 | } | |
49 | template <class T> | |
50 | inline T modf(const T& v, long* ipart) | |
51 | { | |
52 | return modf(v, ipart, policies::policy<>()); | |
53 | } | |
54 | ||
55 | #ifdef BOOST_HAS_LONG_LONG | |
56 | template <class T, class Policy> | |
57 | inline T modf(const T& v, boost::long_long_type* ipart, const Policy& pol) | |
58 | { | |
59 | *ipart = lltrunc(v, pol); | |
60 | return v - *ipart; | |
61 | } | |
62 | template <class T> | |
63 | inline T modf(const T& v, boost::long_long_type* ipart) | |
64 | { | |
65 | return modf(v, ipart, policies::policy<>()); | |
66 | } | |
67 | #endif | |
68 | ||
69 | }} // namespaces | |
70 | ||
71 | #endif // BOOST_MATH_MODF_HPP |